400481650 has 24 divisors (see below), whose sum is σ = 755106804. Its totient is φ = 157996800.

The previous prime is 400481629. The next prime is 400481651. The reversal of 400481650 is 56184004.

It can be written as a sum of positive squares in 6 ways, for example, as 236206161 + 164275489 = 15369^2 + 12817^2 .

It is not an unprimeable number, because it can be changed into a prime (400481651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51211 + ... + 58510.

Almost surely, 2^400481650 is an apocalyptic number.

400481650 is a deficient number, since it is larger than the sum of its proper divisors (354625154).

400481650 is a wasteful number, since it uses less digits than its factorization.

400481650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109806 (or 109801 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 400481650 is about 20012.0376273882. The cubic root of 400481650 is about 737.1019167351.

The spelling of 400481650 in words is "four hundred million, four hundred eighty-one thousand, six hundred fifty".